diff --git a/model_utils/__init__.py b/model_utils/__init__.py
index f297da6..54f1b02 100644
--- a/model_utils/__init__.py
+++ b/model_utils/__init__.py
@@ -1,4 +1,4 @@
-from .choices import Choices
-from .tracker import FieldTracker, ModelTracker
+from .choices import Choices  # noqa:F401
+from .tracker import FieldTracker, ModelTracker  # noqa:F401
 
 __version__ = '3.1.2'
diff --git a/tests/test_fields/test_field_tracker.py b/tests/test_fields/test_field_tracker.py
index b0f2dba..43f12f5 100644
--- a/tests/test_fields/test_field_tracker.py
+++ b/tests/test_fields/test_field_tracker.py
@@ -1,7 +1,5 @@
 from __future__ import unicode_literals
 
-from unittest import skipUnless
-
 import django
 from django.core.exceptions import FieldError
 from django.test import TestCase